Garmin FishFinder
90

The
Fishfinder 90 is designed for the entry-level consumer, and features
a four-inch diagonal 64 x 128 pixel, black-and-white FSTN display.
Garmin now offers Ultrascroll. which allows boaters to get a much
faster refresh rate on their sonar display.

The
Fishfinder 90 provides dual beam transducer operation for improved
performance in shallow water or deep water. The new high dynamic
range, analog receiver performs in - as little as a foot deep.
AutoGain, as well as user adjustable gain, is standard on all
of Garmin's new fishfinders showing more fish under all conditions.